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Adding large numbers can be tough for 2nd graders, but rounding makes it easy. Use rounding to the nearest 100 to make complicated addition problems simple.

Adding and Rounding to the Nearest 100

Give this worksheet a spin, and you'll be on your way to three-digit addition and subtraction success.

Triple Digits! 3-Digit Addition & Subtraction

Represent ones and tens with crayons in this fun worksheet.

Counting on the 100s Chart (Part Two)

Children practice writing numbers from expanded forms, and expanded forms from numbers.

Place Value: Expanding Numbers #2

Learners will solve 20 two- and three-digit addition problems in this versatile practice worksheet.

3-Digit Addition

Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

Three-Digit Addition Strategies Review

Your second grader and his handy addition skills are needed! Can he help Ralph keep track of his hollyhock's growth?

Flower Power Addition #4

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.

Strategy Cards: Three-Digit Addition

Review subtraction and check your work with this worksheet that asks kids to subtract, then add in reverse.

Check Your Work: Subtraction

What does carrying have to do with math? Help your second grader find out with this worksheet full of big number addition and carrying hints.

Carry Over

This math fluency checklist is a great tool that can be used to encourage students to use different strategies to solve math problems efficiently and accurately.

Math Fluency Checklist

Go on a number adventure with this jungle-themed worksheet. Kids will use their number know-how to order numbers and clear a path through the jungle.

Jungle Numbers #9

Subtraction fluency within 20 is the focus of this guided lesson for second graders. Kids will be tasked with mental subtraction, as well as with using manipulatives and drawings to add and subtract larger numbers. Word problems will help to round out the lesson, as kids follow the step-by-step method of solving subtraction word problems. For even more practice in this skill, check out our subtraction worksheets.

Subtraction 3

Let's see how those addition skills have blossomed over the course of the year! Use this quick math assessment to gauge your students' abilities to add three-digit numbers, both with and without regrouping.

Addition Within 1000 Check-in

What do cows like to listen to? To find the answer to this riddle, your kids will need to sharpen their skills in basic addition. So saddle up and let those addition skills go wild!

By the Numbers 2

This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL Math lesson can be used alone or alongside Three-Digit Addition Strategies Review.

Comparing Strategies for Three-Digit Addition

Word problems make for great assessment tools because they require a complete understanding of the math concepts. Use this assessment to evaluate your students' abilities to add and subtract three-digit numbers using mixed operation word problems.

Mixed Operation Word Problem Check-in

Second graders will develop a deeper understanding of place value&nbsp;in this engaging math workbook.

Second Grade Place Value

Master addition using a place value chart with this engaging second-grade worksheet!

Place Value Chart Addition With Regrouping: Sums to 1,000 #3

This worksheet teaches you to use base 10 drawings to add two-digit numbers.

Using Base 10 Drawings in Two-Digit Addition

Can your second grader use her addition ability to chart the growth of Augusto's snapdragon?

Flower Power Addition #3

Practice your addition skills with this inviting second-grade worksheet!

Place Value Chart Addition Without Regrouping: Sums to 1,000 #1

Get more practice performing three-digit addition using open number lines with this second-grade math worksheet!

Adding Three-Digit Numbers on an Open Number Line #2

Add multi-digit numbers with ease in this colorful second-grade math worksheet!

Place Value Chart Addition With Regrouping: Sums to 1,000 #1

Use place value to add three-digit numbers with this second-grade worksheet!

Place Value Chart Addition With Regrouping: Sums to 1,000 #2

Get even more practice performing three-digit addition using open number lines with this second-grade math worksheet!

Adding Three-Digit Numbers on an Open Number Line #3

Put your hundreds chart skills to the test by counting up the charts on this second grade math worksheet.

Adding with the Hundreds Chart

Children will put their three-digit addition skills to the test as they solve 23 practice problems in this math worksheet.

Three-Digit Addition

Once your child masters addition with carrying, there's practically no number too big for her to add!

Addition with Carrying #10

Challenge yourself to solve three-digit addition problems in this colorful worksheet!

Place Value Chart Addition Without Regrouping: Sums to 1,000 #3

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